LG Electronics 20LS7D(C)-UB service manual Component Video Input Y, CB/PB, CR/PR

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5.1. FOR 20LC7D (CONDITION : EZ-Picture "Daylight")

No

Item

 

Min

Typ

Max

Unit

Remark

 

 

 

 

 

 

 

 

 

1.

White peak brightness

 

 

360

450

 

cd/m2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250

450

 

cd/m2

PSM : Daylight

 

 

 

 

 

 

 

 

 

2.

Contrast Ratio

 

 

600

700

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

700

 

 

PSM : Daylight

 

 

 

 

 

 

 

 

 

3.

Brightness uniformity

 

 

 

 

1.25

 

Refer to LCD SPEC.

 

 

 

 

 

 

 

 

 

4.

Color coordinate

RED

X

 

0.640

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

0.330

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

 

 

GREEN

X

 

0.290

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

0.600

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

 

 

BLUE

X

 

0.150

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

0.060

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

 

 

WHITE

X

 

0.295

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

0.305

 

 

+/- 0.03

 

 

 

 

 

 

 

 

 

5.

White Balance Target

Cool

X

 

0.274

 

 

+/- 0.015

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

0.274

 

 

+/- 0.015

 

 

 

 

 

 

 

 

 

 

 

Medium

X

 

0.287

 

 

+/- 0.015

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

0.289

 

 

+/- 0.015

 

 

 

 

 

 

 

 

 

 

 

Warm

X

 

0.314

 

 

+/- 0.015

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

0.318

 

 

+/- 0.015

 

 

 

 

 

 

 

 

 

6.

Viewing angle

 

 

130

160

 

 

Right / Left

 

 

 

 

 

 

 

 

 

 

 

 

 

110

140

 

 

Up / Down

 

 

 

 

 

 

 

 

 

7.

Color Temperature

Medium

 

8,300

9,300

10,300

 

<Test Signal>

 

 

 

 

 

 

 

 

 

 

 

Cool

 

11,000

12,000

13,000

 

85 IRE

 

 

 

 

 

 

 

 

 

 

 

Warm

 

5,500

6,500

7,500

 

 

 

 

 

 

 

 

 

 

 

6. Component Video Input (Y, CB/PB, CR/PR)

No

Resolution

H-freq(kHz)

V-freq(Hz)

Pixel clock

Proposed

 

 

 

 

 

 

1.

720*480

15.73

59.94

 

SDTV ,DVD 480I

 

 

 

 

 

 

2.

720*480

15.73

60.00

 

SDTV ,DVD 480I

 

 

 

 

 

 

3.

720*480

31.47

59.94

 

SDTV 480P

 

 

 

 

 

 

4.

720*480

31.50

60.00

 

SDTV 480P

 

 

 

 

 

 

5.

1280*720

44.96

59.94

 

HDTV 720P

 

 

 

 

 

 

6.

1280*720

45.00

60.00

 

HDTV 720P

 

 

 

 

 

 

7.

1920*1080

33.72

59.94

 

HDTV 1080I

 

 

 

 

 

 

8.

1920*1080

33.75

60.00

 

HDTV 1080I

 

 

 

 

 

 

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Image 8
Contents LCD TV Contents General Guidance Do not use a line Isolation Transformer during this checkServicing Precautions IC Remove/Replacement Small-Signal Discrete Transistor Removal/ReplacementPower Output, Transistor Device Removal/Replacement Diode Removal/ReplacementApplication range Test method SpecificationGeneral SpecificationTV Chroma & Brightness WhiteComponent Video Input Y, CB/PB, CR/PR Mechanical specification RGB input PC/DTVAdjustment Instruction Application ObjectADC-Set Adjustment Set MethodPreparation for Adjustments & Setting of Device Required Test Equipment23LS7D-UB Hdmi 23LS7D-UB RGBAdjustment of White Balance Required EquipmentTroubleshooting TV/CATV doesnt displayVideo doesnt display Component doesnt display Rgbpc doesnt display Hdmi doesnt display LCD Exploded View Exploded View Parts List Replacement Parts List Description / Specification C1608C0G1H220JT 22pF 5% 50V C0G -55TO+125C DIODEs RESISTORs ICsTRANSISTORs & FETs MNR04M0APJ680 68OHM 5% 1/16W 4P 8P R1185 R4007 0RJ1001C678 R4147 R6031 CONNECTORs SWITCHesCOILs & FILTERs & INDUCTORs JACKsOTHERs LED,DIP BL-BUBGE301 Round 3MMPage Page Mar